Is this any good?

I got a 1110/1520 on my PSAT. Im in 10th grade, I also didn’t study. I got college letters from decently good schools in the top 50 in the US, one even 15th, all regarding my PSAT scores. Is it actually any good? The site said I was in the 83 percentile, but what does that mean when it comes to good colleges? What ranked colleges will my score get me into, top 50?
My GPA is a 3.75-3.8; weighted it is 4.185-4.2. Is my GPA with my PSAT score a good enough combination for ivy league or am I still looking at schools that are top 50?

Eh, it’s not bad. You’ll have to improve to get serious consideration from Ivy-caliber schools, though.